Calibration accuracy of the HUTSCAT airborne scatterometer

This communications presents a statistical evaluation of the calibration ac curacy of an airborne scatterometer system. The internal and external calib rations were conducted over a two-year time period. It was shown that the a bsolute calibration accuracy of the Helsinki University of Technology airbo rne scatterometer (HUTSCAT) is better than 0.6 dB with 90% confidence. The techniques are generally applicable to stable airborne remote-sensing radar s.